1145558950 has 12 divisors (see below), whose sum is σ = 2130739740. Its totient is φ = 458223560.

The previous prime is 1145558917. The next prime is 1145558959. The reversal of 1145558950 is 598555411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1145558897 and 1145558906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145558959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11455540 + ... + 11455639.

It is an arithmetic number, because the mean of its divisors is an integer number (177561645).

Almost surely, 2^1145558950 is an apocalyptic number.

1145558950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145558950 is a deficient number, since it is larger than the sum of its proper divisors (985180790).

1145558950 is a wasteful number, since it uses less digits than its factorization.

1145558950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22911191 (or 22911186 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 43.

The square root of 1145558950 is about 33846.1068662261. The cubic root of 1145558950 is about 1046.3391636081.

The spelling of 1145558950 in words is "one billion, one hundred forty-five million, five hundred fifty-eight thousand, nine hundred fifty".